Home / 792,677.80-1,189,016.70-509,242.60

Finding the Fourth Proportional to 792,677.80, 1,189,016.70 and 509,242.60

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Solution

The fourth proportional to 792,677.80, 1,189,016.70 and 509,242.60 is: 763,863.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,677.80 : 1,189,016.70 = 509,242.60 : x
  2. Step 2: Convert to fraction form
    792,677.80/1,189,016.70 = 509,242.60/x
  3. Step 3: Cross multiply
    792,677.80x = 1,189,016.70 × 509,242.60
  4. Step 4: Simplify right side
    792,677.80x = 605,497,955,751.42
  5. Step 5: Solve for x
    x = 605,497,955,751.42/792,677.80
  6. Step 6: Final answer
    x = 763,863.90

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.